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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Kramer Protocol
48
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
NOTE
#
DESCRIPTION
INPUT
OUTPUT
42
AUDIO PARAMETER
SETTINGS FOR
NSTRUCTIONS 22, 24, 25
INPUT Bit:
I0 - 0=input; 1=output
I1 - Left
I2 - Right
0 - Gain
1 - Bass
2 - Treble
3 - Midrange
4 - Mix On
24
56
CHANGE TO ASCII
0
Kramer protocol 3000
19
61
IDENTIFY MACH NE
1 - video machine name
2 - audio machine name
3 - video software version
4 - audio software version
0 - Request first 4 digits
1 - Request first suffix
2 - Request second suffix
3 - Request third suffix
10 - Request first prefix
11 - Request second prefix
12 - Request third prefix
13
62
DEFINE MACHINE
1 - number of inputs
2 - number of outputs
3 - number of setups
1 - for video
2 - for audio
14
NOTES on the above table:
NOTE 1 - When the master switcher is reset, (e g when it is turned on), the reset code is sent to the PC If this code is sent to the
switchers, it will reset according to the present power-down settings
NOTE 2 - These are bi-directional definitions That is, if the switcher receives the code, it will perform the instruction; and if the
instruction is performed (due to a keystroke operation on the front panel), then these codes are sent For example, if the HEX code
01
85
88
83
was sent from the PC, then the switcher (machine 3) will switch input 5 to output 8 If the user switched input 1 to output 7 via the front
panel keypad, then the switcher will send HEX codes:
41
81
87
83
to the PC
When the PC sends one of the commands in this group to the switcher, then, if the instruction is valid, the switcher replies by sending to
the PC the same four bytes that it was sent (except for the first byte, where the DESTINATION bit is set high)
NOTE 3 - SETUP # 0 is the present setting SETUP # 1 and higher are the settings saved in the switcher's memory, (i e those used for
Store and Recall)
NOTE 4 - The reply to a "REQUEST" instruction is as follows: the same instruction and INPUT codes as were sent are returned, and the
OUTPUT is assigned the value of the requested parameter The replies to instructions 10 and 11 are as per the definitions in instructions
7 and 8 respectively For example, if the present status of machine number 5 is breakaway setting, then the reply to the HEX code
0B
80
80
85
would be HEX codes
4B
80
81
85
NOTE 6 – If INPUT is set to 127 for these instructions, then, if the function is defined on this machine, it replies with OUTPUT=1 If
the function is not defined, then the machine replies with OUTPUT=0, or with an error (invalid instruction code)
If the INPUT is set to 126 for these instructions, then, if possible, the machine will return the current setting of this function, even for the
case that the function is not defined For example, for a video switcher which always switches during the VIS of input #1, (and its VIS
setting cannot be programmed otherwise), the reply to the HEX code
0A
FE
80
81 (ie request VIS setting, with INPUT set as 126dec)
would be HEX codes
4A
FE
81
81 (ie VIS setting = 1, which is defined as VIS from input #1)
NOTE 8 - The reply is as in TYPE 3 above, except that here the OUTPUT is assigned with the value 0 if the setup is not defined / no
valid input is detected; or 1 if it is defined / valid input is detected
NOTE 9 - An error code is returned to the PC if an invalid instruction code was sent to the switcher, or if a parameter associated with the
instruction is out of range (e g trying to save to a setup greater than the highest one, or trying to switch an input or output greater than
the highest one defined) This code is also returned to the PC if an RS-232 instruction is sent while the machine is being programmed via
the front panel Reception of this code by the switcher is not valid
NOTE 10 – This code is reserved for internal use